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MAX6866UK29D3S Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX6866UK29D3S Datasheet(HTML) 3 Page - Maxim Integrated Products |
3 / 17 page Nanopower µP Supervisory Circuits with Manual Reset and Watchdog Timer _______________________________________________________________________________________ 3 ELECTRICAL CHARACTERISTICS (continued) (VCC = 1.2V to 5.5V, TA = -40°C to +85°C, unless otherwise specified. Typical values are at VCC = 2.5V, TA = +25°C.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS VCC ≥ 1.1V, ISOURCE = 10µA, RESET asserted, TA ≥ 0°C 0.8 x VCC VCC ≥ 1.2V, ISOURCE = 10µA, RESET asserted 0.8 x VCC VCC ≥ 1.53V, ISOURCE = 200µA, RESET asserted 0.8 x VCC VOH VCC ≥ 2.12V, ISOURCE = 500µA, RESET asserted 0.8 x VCC VCC ≥ 1.71V, ISINK = 500µA, RESET deasserted 0.3 RESET Output Voltage VOL VCC ≥ 2.38V, ISINK = 1.2mA, RESET deasserted 0.3 V CT Input Current CT = GND or VCC 20 nA VIH 0.8 x VCC CT Input Voltage VIL 0.2 x VCC V MANUAL RESET INPUT VIH 0.7 x VCC MR Input Voltage VIL 0.3 x VCC V MR Minimum Pulse Width tMPW 1µs MR Glitch Rejection 200 ns MR to Reset Delay tMRD 250 ns MR Pullup Resistance 510 20 k Ω WATCHDOG TIMER (MAX6864–MAX6869) VIH 0.7 x VCC WDI Input Voltage VIL 0.3 x VCC V WDI Input Current WDI = GND or VCC 20 nA WDI Pulse Width tWDI (Note 3) 150 ns S 1.5 3.3 7.75 Watchdog Timeout Period tWD L95 209 487 s Note 1: Devices are tested at TA = +25°C. Specifications for TA = -40°C to +85°C are guaranteed by design. Note 2: For the MAX6864–MAX6869, the watchdog period is 1s with tRISE and tFALL < 50ns. Note 3: Guaranteed by design. |
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